/*改进版http://blog.csdn.net/qaz2549066580/article/details/41844639*/

#include<windows.h>
#include<conio.h>
#include<time.h>
#include<iostream>
#include<deque>
using namespace std;
deque<int> s_x,s_y; //存储蛇
deque<int>::iterator x_pos,y_pos;
int c_x,c_y; //存储食物坐标
int t_x,t_y; //蛇头坐标
int snakecount=0; //蛇的长度
void isOver(); //判断是否越界
void snake_move(); //移动蛇身
void draw(int ,int ); //绘制蛇身
void init_scene(); //初始化场景
int main()
{c_x=11;c_y=13;t_x=5;t_y=6;system("color 2f");snake_move();return 0;
}
void draw(int m,int n) //绘制
{COORD cor;cor.X=m;cor.Y=n;SetConsoleCursorPosition(GetStdHandle(STD_OUTPUT_HANDLE), cor);
}
////////////////////////////
void snake_move() //移动蛇身
{
init_scene();int c=100;s_x.push_back(t_x); s_y.push_back(t_y);while(1){   draw(t_x,t_y); cout<<" ";while (_kbhit()) //判断是否有键按下{c = _getch();}switch(c){case 97 : case 65:case 4: case 75: //左t_x-=2;break;case 100: case 68: case 6: case 77: //右t_x+=2;break;case 119: case 87: case 8: case 72: //上t_y-=1;break;case 115: case 83: case 2: case 80: //下t_y+=1;break;}isOver();
/////////s_x.push_back(t_x); s_y.push_back(t_y);
////////draw(c_x,c_y);cout<<"★"; //食物坐标
///////////////////if(c_x==t_x && c_y==t_y) //判断是否吃到食物{srand((unsigned) time(NULL));c_x=5+rand()%37;if(c_x%2==0)if(c_x>=20)c_x--;elsec_x++;c_y=3+rand()%20;draw(c_x,c_y);cout<<"★";snakecount++;s_x.push_front(*--s_x.end()); s_y.push_front(*--s_y.end());}x_pos=s_x.begin();y_pos=s_y.begin();while (x_pos!=s_x.end()) // 输出蛇头和蛇身{draw(*x_pos++,*y_pos++);cout<<"▇";}draw(s_x.front(),s_y.front());cout<<" ";s_x.pop_front(); s_y.pop_front();draw(t_x,t_y); cout<<"▇";Sleep(250);}
}
////////////////
void isOver()
{if(t_x<=2 || t_x>=42 || t_y<=2 || t_y>=26){system("cls");cout<<"Game Over"<<"[y/n]"<<endl;char c=getchar();if(c==89 || c==121){s_x.clear();s_y.clear();c_x=11;c_y=13;t_x=5;t_y=6;snakecount=0;system("cls");snake_move();}else{system("pause");}}
}
void init_scene()
{for(int i=2;i<26;i++){draw(2,i);cout<<"▇";draw(41,i);cout<<"▇";}for(int i=2;i<42;i+=2){draw(i,25);cout<<"▇";draw(i,2);cout<<"▇";}
}